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/*
* Copyright (c) 2011, Google Inc. All rights reserved.
* Copyright (C) 2015 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ScrollAnimatorSmooth_h
#define ScrollAnimatorSmooth_h
#include "ScrollAnimator.h"
#if ENABLE(SMOOTH_SCROLLING)
namespace WebCore {
class ScrollAnimation;
class ScrollAnimatorSmooth final : public ScrollAnimator {
public:
explicit ScrollAnimatorSmooth(ScrollableArea&);
virtual ~ScrollAnimatorSmooth();
virtual bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float multiplier) override;
virtual void scrollToOffsetWithoutAnimation(const FloatPoint&) override;
#if !USE(REQUEST_ANIMATION_FRAME_TIMER)
virtual void cancelAnimations() override;
virtual void serviceScrollAnimations() override;
#endif
virtual void willEndLiveResize() override;
virtual void didAddVerticalScrollbar(Scrollbar*) override;
virtual void didAddHorizontalScrollbar(Scrollbar*) override;
private:
std::unique_ptr<ScrollAnimation> m_animation;
};
} // namespace WebCore
#endif // ENABLE(SMOOTH_SCROLLING)
#endif // ScrollAnimatorSmooth_h
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